Transmission device of circular knitting machine

Abstract

The utility model discloses a transmission device of a circular knitting machine, which belongs to the field of circular knitting machines and comprises a frame, a large disc, a gear ring, a first transmission component, a second transmission component, a large tripod, a large tripod gear and support legs, the gear ring is rotatably arranged in the large disc, the first transmission component is arranged on the large disc, one end of the first transmission component is meshed with the gear ring, and the other end of the first transmission component is meshed with the second transmission component. The other end of the first transmission assembly is connected with a driving source, supporting legs are fixed to the top of the large disc, the large tripod is fixed to the tops of the supporting legs, the large tripod gear is rotatably arranged in the large tripod, the large disc is provided with three second transmission assemblies, the three second transmission assemblies are all meshed with the gear ring, and the top ends of the three second transmission assemblies all extend into the large tripod. And the gears are meshed with the big tripod gear. The three second transmission assemblies are arranged to be matched with the large tripod gear and the gear ring, a three-shaft transmission mode is adopted, the large tripod gear and the gear ring are positioned while transmission is achieved, and transmission is more accurate and stable.

Description

Technical Field

[0001] The utility model belongs to the field of large circular knitting machines, and particularly relates to a transmission device for a large circular knitting machine. Background Art

[0002] A circular knitting machine, scientifically named a circular weft knitting machine (or called a circular weft knitting machine). Due to the large number of loop-forming systems (referred to as the number of yarn feeding paths or loop-forming paths in enterprises, abbreviated as the number of paths) of circular knitting machines, high rotational speed, high output, fast pattern change, good fabric quality, few processes, and strong product adaptability, they have developed rapidly.

[0003] The existing large tripod gear transmission only uses one driving gear to mesh with it for transmission. For example, a transmission structure of the main shaft of a large circular knitting machine with the application number CN201922220187.7, its structure includes a large tripod gear, a main shaft oil seal box, a large tripod driving gear, a main shaft, a middle core driving gear, a middle core gear, a double-sided lower plate driving gear, a middle core conveyor belt, a mounting sleeve, a first transmission wheel, a power transmission belt, a driving rotating shaft, a motor, a connecting seat, a base, a second transmission wheel, and a lower plate conveyor belt. The large tripod gear meshes with the large tripod driving gear. The main shaft oil seal box is installed at the head end of the main shaft. The large tripod driving gear is fixedly connected to the main shaft. The middle core driving gear and the middle core gear are both fixedly connected to the main shaft. The tail end of the main shaft is embedded and installed on the double-sided lower plate driving gear through a bearing. The middle core gear is connected to the first transmission wheel through the middle core conveyor belt. This single-axis transmission method only drives the large tripod gear and cannot limit the large tripod gear well, resulting in unstable operation of the machine and affecting the accuracy of the cylinder. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a transmission device for a large circular knitting machine to overcome at least one of the above-mentioned defects in the prior art.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A transmission device for a large circular knitting machine provided by the utility model includes a frame, a large plate, a gear ring, a first transmission component, a second transmission component, a large tripod, a large tripod gear, and a leg. A large plate is fixed to the top of the frame. A gear ring is rotatably arranged inside the large plate. The first transmission component is arranged on the large plate. One end of the first transmission component meshes with the gear ring, and the other end of the first transmission component is connected to a driving source. A leg is fixed to the top of the large plate. The large tripod is fixed to the top of the leg. The large tripod gear is rotatably arranged inside the large tripod. The large plate is provided with three second transmission components. All three second transmission components mesh with the gear ring. The top ends of all three second transmission components extend into the large tripod and all mesh with the large tripod gear.

[0007] Preferably, the first transmission assembly includes a first gear, a first bearing block, and a first rotating shaft. The first bearing block is fixed to the bottom of the large plate. The top end of the first rotating shaft passes through the first bearing block and extends into the interior of the large plate to be fixed with the first gear. The first gear meshes with the toothed ring, and the first rotating shaft is connected to the driving source.

[0008] Preferably, the three second transmission assemblies are evenly spaced along the circumferential direction of the large plate.

[0009] Preferably, there are three legs in total, and the three legs are evenly spaced along the circumferential direction of the large plate.

[0010] Preferably, the second transmission assembly includes a second bearing block, a second gear, a second rotating shaft, a third bearing block, and a third gear. The second bearing block is fixed to the bottom of the large plate. The bottom end of the second rotating shaft is inserted into the second bearing block. The second gear is fixed to the lower part of the second rotating shaft. The second gear meshes with the toothed ring. The inner bottom wall of the large tripod is fixed with the third bearing block. The top end of the second rotating shaft sequentially passes through the top wall of the large plate, the leg, the bottom wall of the large tripod, and the third bearing block, and is fixed with the third gear. The third gear meshes with the large tripod gear.

[0011] Preferably, the large plate has a first circular ring groove. The large plate is rotatably arranged in the first circular ring groove. The large plate has a first relief groove and a second relief groove inside. Both the first relief groove and the second relief groove communicate with the first circular ring groove. The first gear is arranged in the first relief groove, and a part of it passes through the first relief groove to mesh with the toothed ring. The second gear is arranged in the second relief groove, and a part of it passes through the second relief groove to mesh with the toothed ring.

[0012] Preferably, it further includes a fixed plate and a bolt. The top of the large tripod gear is detachably connected to the fixed plate through the bolt. The fixed plate has a first installation position for installing the upper syringe mechanism.

[0013] Preferably, the toothed ring has a second installation position for installing the lower syringe mechanism.

[0014] Preferably, the large tripod has a second circular ring groove inside, and the large tripod gear is rotatably arranged in the second circular ring groove.

[0015] Preferably, several wear-resistant pieces are fixed to the inner bottom wall of the second circular ring groove, and the bottom wall of the large tripod gear contacts the top wall of the wear-resistant pieces.

[0016] The beneficial effects of the present utility model are as follows:

[0017] 1. By arranging three second transmission assemblies to cooperate with the large tripod gear and the toothed ring, adopting a three-axis transmission method, while achieving transmission, it realizes the positioning of the large tripod gear and the toothed ring, making the transmission more accurate and stable.

[0018] 2. It only needs to cooperate with one driving source to drive and rotate the upper cylinder mechanism and the lower cylinder mechanism synchronously, and through the positioning transmission of the gear ring and the large tripod gear, the precision of the upper cylinder mechanism and the lower cylinder mechanism is improved.

[0019] 3. Through the arrangement of three second transmission components evenly spaced circumferentially along the large plate to form a triangular positioning, the rotation of the gear ring and the large tripod gear is more stable.

[0020] 4. The setting of the wear-resistant piece provides a stable contact surface, reducing the unstable transmission phenomenon caused by uneven wear or changing contact surface, and further improving the transmission accuracy.

[0021] 5. By setting a fixed plate detachably arranged with the large tripod gear, and installing the upper cylinder mechanism through the fixed plate, the traditional way of integrally setting the upper cylinder mechanism and the large tripod gear is changed. When changing the vertical position of the upper cylinder mechanism, the position of the large tripod gear remains unchanged, ensuring the meshing accuracy between the large tripod gear and the third gear.

[0022] 6. The detachable connection method between the fixed plate and the large tripod gear realized by the pin plays a guiding role when changing the vertical position of the upper cylinder mechanism, enabling the upper cylinder mechanism to vertically displace up and down perpendicular to the fixed plate and avoiding the angular deviation of the upper cylinder mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a three-dimensional structural schematic diagram of the present utility model.

[0024] Figure 2 is a top-view structural schematic diagram of the present utility model.

[0025] Figure 3 is a front-view structural schematic diagram of the present utility model.

[0026] Figure 4 is Figure 3 the sectional structural schematic diagram taken along the A-A direction in

[0027] Figure 5 is a matching structural schematic diagram of the first transmission component, the gear ring, the second transmission component, and the large tripod gear of the present utility model.

[0028] Figure 6 is a three-dimensional structural schematic diagram of the large plate of the present utility model.

[0029] Figure 7 is a top-view structural schematic diagram of the large tripod and the large tripod gear of the present utility model.

[0030] Figure 8 is Figure 7 the sectional structural schematic diagram taken along the B-B direction in

[0031] Figure 9 Yes Figure 8 Schematic enlarged structure diagram of C in

[0032] The reference signs in the accompanying drawings are: 1-frame, 2-large plate, 3-toothed ring, 4-first transmission assembly, 5-second transmission assembly, 6-large tripod, 7-large tripod gear, 8-leg, 41-first gear, 42-first bearing block, 43-first rotating shaft, 51-second bearing block, 52-second gear, 53-second rotating shaft, 54-third bearing block, 55-third gear, 21-first circular groove, 22-first relief groove, 23-second relief groove, 9-fixed plate, 10-pin, 91-first mounting position, 31-second mounting position, 61-second circular groove, 11-wear-resistant plate. Specific embodiments

[0033] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0034] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art. In the description of the present utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance. The large tripod gears in this embodiment all have teeth around the entire circumference. Only some teeth of the large tripod gear in the accompanying drawings are shown schematically, and it does not mean that the large tripod gear in this embodiment only has some teeth.

[0035] Such as Figures 1 to 9As shown in the figure, a circular knitting machine transmission device provided in this embodiment includes a frame 1, a large plate 2, a gear ring 3, a first transmission component 4, a second transmission component 5, a large tripod 6, a large tripod gear 7, a leg 8, a fixed plate 9, and a pin 10. A large plate 2 is fixed to the top of the frame 1. A gear ring 3 is rotatably arranged inside the large plate 2. The first transmission component 4 is arranged on the large plate 2. One end of the first transmission component 4 meshes with the gear ring 3, and the other end of the first transmission component 4 is connected to a driving source. Legs 8 are fixed to the top of the large plate 2. A large tripod 6 is fixed to the top of the legs 8. A large tripod gear 7 is rotatably arranged inside the large tripod 6. The large plate 2 is provided with three second transmission components 5. All three second transmission components 5 mesh with the gear ring 3. The tops of all three second transmission components 5 extend into the large tripod 6 and all mesh with the large tripod gear 7. The top of the large tripod gear 7 is detachably connected to a fixed plate 9 through a pin 10. The fixed plate 9 has a first installation position 91 for installing an upper cylinder mechanism, and the gear ring 3 has a second installation position 31 for installing a lower cylinder mechanism.

[0036] By arranging three second transmission components 5 to cooperate with the large tripod gear 7 and the gear ring 3 and adopting a three-axis transmission method, while achieving transmission, the positioning of the large tripod gear 7 and the gear ring 3 is realized, making the transmission more accurate and stable. And through the arrangement of the gear ring 3 and the first transmission component 4, the driving rotation of the gear ring 3 is realized. Then, through the cooperation of the gear ring 3 and the three second transmission components 5, the large tripod gear 7 is synchronously driven to rotate. Through the circular knitting machine transmission device of the present utility model, only by cooperating with one driving source, the upper cylinder mechanism and the lower cylinder mechanism can be synchronously driven to rotate, and through the positioning transmission of the gear ring 3 and the large tripod gear 7, the precision of the upper cylinder mechanism and the lower cylinder mechanism is improved. By setting a fixed plate 9 detachably arranged with the large tripod gear 7 and installing the upper cylinder mechanism through the fixed plate 9, the traditional way of integrally arranging the upper cylinder mechanism and the large tripod gear 7 is changed. When changing the vertical position of the upper cylinder mechanism, the position of the large tripod gear 7 is not changed, ensuring the meshing precision between the large tripod gear 7 and the third gear 55. Through the detachable connection method between the fixed plate 9 and the large tripod gear 7 realized by the pin 10, when changing the vertical position of the upper cylinder mechanism, the pin 10 plays a guiding role, enabling the upper cylinder mechanism to vertically move up and down perpendicular to the fixed plate 9 and avoiding the angular deviation of the upper cylinder mechanism.

[0037] Among them, the first transmission component 4 includes a first gear 41, a first bearing seat 42, and a first rotating shaft 43. The first bearing seat 42 is fixed to the bottom of the large plate 2. The top end of the first rotating shaft 43 passes through the first bearing seat 42 and extends into the inside of the large plate 2 to be fixed with a first gear 41. The first gear 41 meshes with the gear ring 3. The first rotating shaft 43 is connected to a driving source. The driving source drives the first rotating shaft 43 to rotate, causing the first gear 41 to rotate and driving the gear ring 3 to rotate.

[0038] Among them, three second transmission components 5 are evenly spaced along the circumferential direction of the large disc 2. There are three legs 8 in total, and the three legs 8 are evenly spaced along the circumferential direction of the large disc 2. Through the arrangement of the three second transmission components 5 evenly spaced along the circumferential direction of the large disc 2, a triangular positioning is formed, making the rotation of the gear ring 3 and the large tripod gear 7 more stable.

[0039] Among them, the second transmission component 5 includes a second bearing seat 51, a second gear 52, a second rotating shaft 53, a third bearing seat 54, and a third gear 55. The second bearing seat 51 is fixed to the bottom of the large disc 2. The bottom end of the second rotating shaft 53 is inserted into the second bearing seat 51. A second gear 52 is fixed to the lower part of the second rotating shaft 53. The second gear 52 meshes with the gear ring 3. A third bearing seat 54 is fixed to the inner bottom wall of the large tripod 6. The top end of the second rotating shaft 53 sequentially passes through the top wall of the large disc 2, the leg 8, the bottom wall of the large tripod 6, and the third bearing seat 54, and is fixed with a third gear 55. The third gear 55 meshes with the large tripod gear 7. When the gear ring 3 rotates, it drives the second gear 52 to rotate, causing the second rotating shaft 53 to rotate, driving the third gear 55 to rotate, and causing the large tripod gear 7 to rotate.

[0040] Among them, the large disc 2 has a first circular ring groove 21. The large disc 2 is rotatably arranged in the first circular ring groove 21. The large disc 2 has a first relief groove 22 and a second relief groove 23. Both the first relief groove 22 and the second relief groove 23 communicate with the first circular ring groove 21. The first gear 41 is arranged in the first relief groove 22, and a part passes through the first relief groove 22 and meshes with the gear ring 3. The second gear 52 is arranged in the second relief groove 23, and a part passes through the second relief groove 23 and meshes with the gear ring 3. Through the arrangement of the first circular ring groove 21, the smooth rotation of the gear ring 3 is ensured. Through the arrangement of the first relief groove 22, it is convenient for the first gear 41 to mesh with the gear ring 3 to drive the gear ring 3 to rotate; through the arrangement of the second relief groove 23, it is convenient for the second gear 52 to mesh with the gear ring 3 to drive the second gear 52 to rotate through the gear ring 3.

[0041] Among them, the large tripod 6 has a second circular ring groove 61. The large tripod gear 7 is rotatably arranged in the second circular ring groove 61. A plurality of wear-resistant pieces 11 are fixed to the inner bottom wall of the second circular ring groove 61. The bottom wall of the large tripod gear 7 contacts the top wall of the wear-resistant piece 11. Through the arrangement of the second circular ring groove 61, the smooth rotation of the large tripod gear 7 is ensured. Through the arrangement of the wear-resistant pieces 11, a stable contact surface is provided, reducing the transmission instability caused by uneven wear or changing contact surfaces, and further improving the transmission accuracy.

[0042] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A circular knitting machine transmission device, characterized in that: It includes a frame, a large plate, a gear ring, a first transmission assembly, a second transmission assembly, a large tripod, a large tripod gear, and a leg; A large plate is fixed on the top of the frame, and a gear ring is rotatably arranged in the large plate; The first transmission assembly is disposed on the large plate, one end of the first transmission assembly is meshed with the gear ring, and the other end of the first transmission assembly is connected to a driving source; A support leg is fixed on the top of the large plate, the large tripod is fixed on the top of the support leg, and the gear of the large tripod is rotatably arranged in the large tripod; The large plate is provided with three second transmission components, and the three second transmission components are all meshed with the gear ring. The top ends of the three second transmission components extend into the large tripod and are all meshed with the gears of the large tripod.

2. The circular knitting machine transmission device according to claim 1, characterized in that: The first transmission assembly includes a first gear, a first bearing seat, and a first rotating shaft; A first bearing seat is fixed at the bottom of the large plate, the top end of the first rotating shaft passes through the first bearing seat and extends to the inside of the large plate where a first gear is fixed, the first gear is meshed with the gear ring, and the first rotating shaft is connected to a driving source.

3. The circular knitting machine transmission device according to claim 2, characterized in that: The three second transmission assemblies are distributed equidistantly along the circumference of the large disk.

4. The circular knitting machine transmission device according to claim 3, characterized in that: There are three supporting legs in total, and the three supporting legs are evenly spaced and distributed along the circumference of the large plate.

5. The circular knitting machine transmission device according to claim 4, characterized in that: The second transmission assembly includes a second bearing seat, a second gear, a second rotating shaft, a third bearing seat, and a third gear; The second bearing seat is fixed to the bottom of the large plate, the bottom end of the second rotating shaft is inserted into the second bearing seat, a second gear is fixed to the lower part of the second rotating shaft, and the second gear is meshed with the gear ring; A third bearing seat is fixed to the inner bottom wall of the large tripod; The top end of the second rotating shaft passes through the top wall of the large plate, the supporting legs, the bottom wall of the large tripod, and the third bearing seat in sequence, and is fixed with a third gear, which is meshed with the gear of the large tripod.

6. The circular knitting machine transmission device according to claim 5, characterized in that: The large plate has a first annular groove, and the large plate can be rotatably arranged in the first annular groove; The large plate has a first clearance groove and a second clearance groove, and the first clearance groove and the second clearance groove are both connected to the first annular groove; The first gear is disposed in the first clearance groove, and a portion thereof passes through the first clearance groove and meshes with the gear ring; The second gear is disposed in the second clearance groove, and a portion of the second gear passes through the second clearance groove and meshes with the gear ring.

7. The circular knitting machine transmission device according to claim 1, characterized in that: Also includes a fixing plate, and a latch; The top of the large tripod gear is detachably connected to a fixed plate via a latch; The fixed disk has a first mounting position for mounting an upper syringe mechanism.

8. The circular knitting machine transmission device according to claim 1, characterized in that: The gear ring has a second mounting position for mounting the lower syringe mechanism.

9. The circular knitting machine transmission device according to claim 1, characterized in that: The large tripod is provided with a second annular groove, and the large tripod gear is rotatably arranged in the second annular groove.

10. The circular knitting machine transmission device according to claim 9, characterized in that: A plurality of wear-resistant sheets are fixed to the inner bottom wall of the second annular groove, and the bottom wall of the large tripod gear contacts the top wall of the wear-resistant sheets.

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